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Laurence Packer
York University
136Publications
38H-index
5,572Citations
Publications 139
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#1Rafael R. Ferrari (York University)H-Index: 3
#2Thomas M. Onuferko (York University)H-Index: 3
Last.Laurence Packer (York University)H-Index: 38
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Abstract Colletes Latreille (Hymenoptera: Colletidae) is a diverse genus with 518 valid species distributed in all biogeographic realms, except Australasia and Antarctica. Here we provide a comprehensive dated phylogeny for Colletes based on Bayesian analysis of DNA sequence data of six loci: 28S rDNA, cytochrome c oxidase subunit 1, elongation factor-1α copy F2, long-wavelength rhodopsin, RNA polymerase II and wingless. In total, our multilocus matrix consists of 4824 aligned base pairs for 143...
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#1Thomas M. Onuferko (York University)H-Index: 3
#2Petr Bogusch (University of Hradec Králové)H-Index: 12
Last.Laurence Packer (York University)H-Index: 38
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Abstract The bee genus Epeolus Latreille (Hymenoptera: Apidae) consists of 109 species, which are known to be exclusively cleptoparasites of polyester (or cellophane) bees of the genus Colletes Latreille (Hymenoptera: Colletidae). Both genera have a nearly cosmopolitan distribution and are represented on all continents except Antarctica and Australia. We present the most comprehensive phylogeny for Epeolus to date, based on combined molecular and morphological data. In total, 59 ingroup taxa (sp...
1 CitationsSource
#1Michael S. Engel (AMNH: American Museum of Natural History)H-Index: 37
#2Laurence Packer (York University)H-Index: 38
Last.Dino J. MartinsH-Index: 5
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The minute, cleptoparasitic bee genus Chiasmognathus (Nomadinae: Ammobatini) is documented from western Kenya, representing the southernmost records of the lineage. Two species are recognized from the Great Rift Valley— Chiasmognathus aturksvenicus , from the southwestern side of Lake Turkana, and the other, C. riftensis , from further south near Lake Bogoria. The former was captured in association with its host, Nomioides (Nomioides) turanicus (Halictinae: Nomioidini). Chiasmognathus saheliensi...
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#1Eduardo A. B. Almeida (USP: University of São Paulo)H-Index: 10
#2Laurence Packer (York University)H-Index: 38
Last.Marcio R. Pie (UFPR: Federal University of Paraná)H-Index: 24
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2 CitationsSource
#1Laurence Packer (York University)H-Index: 38
#2Sheila Dumesh (York University)H-Index: 3
Fifteen new species of Chilicola subgenus Oroediscelis are described and illustrated. The following 11 species are from Argentina recording a remarkable diversity and the first records of the subgenus in the country: Chilicola capillitas Packer and Dumesh, new species, C. abrebotellas , Packer and Dumesh, new species; C. goloboffi Packer and Dumesh, new species; C. fritzi , Packer and Dumesh, new species; C. rozeni Packer and Dumesh, new species; C. roigi Packer and Dumesh, new species; C. carpe...
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#1Laurence PackerH-Index: 38
#2Sheila DumeshH-Index: 3
FIGURES 165–166. Scutellum, dorsal view, to show punctation. 165. with numerous small punctures and sparse large punctures (C. benoistiana); 166. with few or no small punctures and dense large punctures (C. gibbosa).
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#1Korrawat Attasopa (CMU: Chiang Mai University)
#2Hans Bänziger (CMU: Chiang Mai University)H-Index: 3
Last.Laurence Packer (York University)H-Index: 38
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We describe Lepidotrigona satun Attasopa and Banziger new species from southern Thailand based upon associated males and females (workers). The new species is a member of the L. ventralis species group, which is otherwise represented in Thailand only by L. flavibasis and L. doipaensis . We also describe the males of the latter two species, associated with nests from close to their type localities in northern Thailand. Lepidotrigona doipaensis Schwarz and L. flavibasis (Cockerell) had previously ...
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#1Laurence Packer (York University)H-Index: 38
Braunsapis scorpius Packer, new species, from Vietnam, is diagnosed, described, and illustrated. In addition to adaptations commonly associated with related social parasites ( i.e ., reduced metatibial hairs, short mouthparts, and absence of a basitibial plate), it has a remarkably recurved metasomal apex. It is compared to other socially parasitic members of its genus from Asia and a key to females of these social parasites is provided.
1 CitationsSource
#1Laurence Packer (York University)H-Index: 38
#2Spencer K. Monckton (York University)H-Index: 4
Last.Rafael R. Ferrari (York University)H-Index: 3
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19 CitationsSource
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